Severe Thunderstorms in the Northern Plains and Upper Midwest; Critical Fire Weather in the West; Dangerous Heat in the Central and Eastern U.S.

Severe thunderstorms are likely today across the northern Plains and into the upper Mississippi Valley. Gusty winds and dry conditions will result in widespread critical fire weather through Saturday across parts of the Four Corners region and the Great Basin. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Read More >

Current conditions at

Monticello Regional Airport (KMXO)

Lat: 42.22°NLon: 91.16°WElev: 827ft.

Light Rain

68°F

20°C

Humidity 100%
Wind Speed S 17 G 24 mph
Barometer 29.88 in
Dewpoint 68°F (20°C)
Visibility 9.00 mi
Last update 20 Jun 7:35 am CDT
Extended Forecast for

New Vienna IA

Heat Advisory June 21, 12:00pm until June 23, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Showers and thunderstorms likely, mainly before 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 88. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 88 °F

    Showers
    Likely then
    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 77. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 77 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Saturday

    Saturday: Sunny, with a high near 93. Heat index values as high as 103. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 93 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 76. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 76 °F

    Clear and
    Breezy then
    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 95. Breezy.

    High: 95 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers after 1pm.  Sunny, with a high near 92.

    High: 92 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 69. Chance of precipitation is 70%.

    Low: 69 °F

    T-storms
    Likely

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 86. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 88. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Mostly clear, with a low around 77. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday
Sunny, with a high near 93. Heat index values as high as 103. Breezy, with a south wind 20 to 25 mph, with gusts as high as 35 mph.
Saturday Night
Clear, with a low around 76. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny and hot, with a high near 95. Breezy.
Sunday Night
Mostly clear, with a low around 76.
Monday
A 40 percent chance of showers after 1pm. Sunny, with a high near 92.
Monday Night
Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Tuesday
Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
New Vienna IA
 42.55°N 91.11°W (Elev. 1053 ft)
5:03 am CDT Jun 20, 2025
7am CDT Jun 20, 2025-6pm CDT Jun 26, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database